Angles (L)

L8X4X1/2 L203X102X12.7

Standard: AISC Shapes Database v16.0Source: AISC (aisc.org) — Shapes Database v16.0 (Excel file)
Values published by AISC, in US customary (original) and SI units.
xyb = 8d = 4t = 0.5t = 0.5
Cross-section, to scaledimensions in inches

Dimensions

Depthd
4in
Widthb
8in
Thicknesst
0.5in
Distance k (design)kdes
1in
Distance k (detailing)kdet
1in

Mass and area

Mass per lengthm
19.6lb/ft
Cross-sectional areaA
5.8in²

Strong axis x–x

Moment of inertiaIx
38.6in⁴
Elastic section modulusSx
7.48in³
Plastic section modulusZx
13.1in³
Radius of gyrationrx
2.58in

Weak axis y–y

Moment of inertiaIy
6.75in⁴
Elastic section modulusSy
2.15in³
Plastic section modulusZy
3.91in³
Radius of gyrationry
1.08in

Principal axes

Moment of inertia, minor principal axisIz
4.32in⁴
Section modulus, minor principal axisSz
1.82in³
Radius of gyration, minor principal axisrz
0.863in
Tangent of principal axis angletan α
0.266

Torsion and stability

Torsional constantJ
0.501in⁴
Warping constantCw
1.8in⁶
Polar radius (shear center)r̄o
3.86in

Centers

Centroidx̄
0.854in
Centroidȳ
2.84in
Plastic neutral axisxp
0.363in
Plastic neutral axisyp
2.2in

Slenderness ratios

Wall slendernessb/t
16

Equivalents in other standards